Hydrochloric acid is a good solvent that is used in many industries. The chemical is colorless and may appear yellowish. The acid itself and its esters (hydrogen chloride) are poisonous.

Hydrochloric acid itself and its esters are poisonous.

Properties of hydrochloric acid

The toxicity of the substance lies in the fact that the liquid evaporates in air, releasing gas. It enters the human body through mucous membranes and skin. When hitting skin acid causes severe chemical burns. Every person's stomach also contains hydrochloric acid. It helps the digestive processes. People who have low acidity are prescribed medications with this substance. Hydrogen chloride solution is also used as food additives E 507.

Hydrochloric acid and its vapors can accelerate the corrosion of metals. Therefore, it is stored and transported in special vessels.

Chemical damage to the skin

Burns occur as a result of exposure to the skin high temperature(thermal), electric field (electric), acids or alkaline substances (chemical) and electromagnetic radiation (radial). Thermal burns are common in everyday life.

Skin damage chemicals difficult to treat. The degree of harm is determined by the amount and concentration of the acid or alkali, the characteristics of exposure and behavior when in contact with water or air, as well as the period of stay on the skin or mucous membranes. Doctors distinguish the following degrees of severity of a chemical burn:

• I – redness of the affected area and pain;
• II – swelling and blisters with transparent contents appear;
• III – necrosis upper layers skin and blisters with cloudy fluid or blood;
• IV – deep lesion that reaches the muscles and tendons.

Doctors are more likely to encounter severe cases of grades III and IV due to the fact that chemical composition substances are very toxic and act instantly. Therefore, people should know the symptoms of acid burn and the basics of treatment emergency care in such situations, in order to maintain your health or be able to provide first aid.

When hit of hydrochloric acid on the skin it is necessary to wash the area clean water

First aid for a burn with hydrochloric acid

As a result of exposure to the toxin, a dry, dense, yellowish crust with clear boundaries appears on the skin. After contact is eliminated, the reagent continues to cause harm, so the person needs urgent help. The first thing to do if hydrochloric acid gets on your skin is:

1. Remove clothing and other objects from the burned area.
2. Rinse the area with clean water for 15 minutes or more.
3. If the injury burns, continue to wash off the substance.
4. After this, wash the burn area with a solution of soda or soap and water.
5. Apply a dry sterile bandage.

It is strictly forbidden to wash off hydrochloric acid with oils, alcohol tinctures, urine. Doctors do not recommend piercing the blisters yourself, touching the wound with your hands, or lubricating it with cream or vegetable oil.

If hydrochloric acid gets into the eyes, a person needs to rinse with running water and then with a soda solution. Signs of injury: strong burning sensation and pain in the eyes. The clinical picture of the disease may also include the appearance of a scab and redness of the mucous membrane. The victim needs to see a doctor who will assess the patient’s condition and prescribe a course of therapy.

You can treat small chemical burns at home

Burn treatment

High-quality first aid increases the effectiveness of therapy and gives the victim hope for fast recovery. The patient is examined by a surgeon, assesses his condition and the severity of the burn. Then he explains how to treat an injury at home. If large areas of skin are affected, the patient is left under the constant supervision of doctors.

You can treat a small chemical burn at home according to the prescribed course. The doctor advises treating the area antiseptics, which do not contain alcohol. It is mandatory to use medicines that help restore normal functioning skin.

Clinic of poisoning with hydrochloric acid and its esters

The hydrogen chloride solution enters gastrointestinal tract a person at work in violation of safety rules or intentionally in an attempt to commit suicide. Hydrochloric acid gets on the mucous membrane of the mouth, throat, tongue and causes severe burns and poisoning. The first symptoms of damage to the esophagus and stomach:

• sharp pain in the stomach and chest;
• vomit with blood;
• swelling of the larynx.

In severe cases of poisoning and in the absence medical care are developing additional symptoms: pulmonary edema, severe pathologies of the kidneys and liver. Pain syndrome may lead to burn shock, which aggravates the victim’s condition possible loss consciousness.

Symptoms of damage to the esophagus and stomach: acute pain in the abdomen and chest

The victim must be removed from the premises to avoid additional intoxication from toxic fumes. First aid for hydrochloric acid poisoning is to immediately lavage the stomach. The patient is forced to drink about a liter of water and is induced to vomit. If a person exhibits symptoms traumatic shock, he is given sedatives or painkillers.

Hydrogen chloride solution evaporates quickly in open air. During this process, a toxic haze appears in the air, which harms the human respiratory tract. Symptoms of poisoning by toxic fumes:

• dry cough;
• suffocation;
• burning of mucous membranes;
• tooth damage;
• disruption of the stomach and intestines.

First aid for poisoning with toxic ethers is free access to clean air and rinsing the throat with water or a soda solution.

With prolonged inhalation of poison, the clinical picture may be accompanied by toxic pulmonary edema. For his initial stage characteristic chest pain and nonproductive cough. If you remove the reagent, all symptoms disappear within an hour ( latent period). But at this time the lungs begin to change and lose some functions. Gradually, chest pain and difficulty breathing return, which entail the appearance of wheezing and the onset of the edema process. Completion of lung poisoning is accompanied by the following symptoms:

• bluish or gray tint of the skin and mucous membranes;
• shortness of breath and weak pulse;
• sputum discharge (with blood);
• lack of oxygen in the body and others.

The victim must be immediately taken to the hospital, where a toxicologist will prescribe adequate treatment.

Acid or acid vapor poisoning must be treated in a hospital

Treatment of hydrochloric acid intoxication

Poisoning with liquid hydrochloric acid or its vapor must be treated in a hospital. The toxicologist prescribes symptomatic therapy. The first thing the doctor does is prescribe painkillers to eliminate pain shock.

Treatment includes drugs to stop bleeding, maintain the functioning of the stomach and intestines, lungs, of cardio-vascular system, as well as the liver and kidneys. To prevent development inflammatory process the doctor may prescribe an antibiotic. For the first couple of days the victim cannot eat, and then he is prescribed strict diet until the end of the course of treatment.

Prevention of hydrochloric acid poisoning

Preventive measures help save people's lives and health. They consist of following safety rules when working with poisons, using individual methods of protection (apron, gas mask, gloves, protective glasses, special suit).

The management of the enterprise must ensure good ventilation of the premises, timely notification of hydrochloric acid leaks and prompt evacuation. TO preventive measures also include conducting briefings and training on first aid and actions in emergency situations.

To prevent chronic diseases, employees must undergo routine medical examinations, as well as provide themselves with the necessary amount of vitamins, minerals and microelements. Chemical burns and hydrochloric acid poisoning are serious diseases. The high toxicity of the substance forces immediate action to save a person’s life. People who deal with this poison must follow basic safety rules and be able to provide first aid.

Hydrochloric acid is one of the most caustic liquids used in various industries. The elementary formula (HCl - hydrogen chloride) produces a dangerous compound, the vapors of which irritate the human mucosa. If the acid comes into contact with the skin, it causes severe burns, so when working with hydrogen chloride you must follow safety precautions and be extremely careful.

How to obtain hydrochloric acid

The main method for producing hydrogen chloride is synthetic: hydrogen chloride gas is dissolved in water. The second method is to obtain hydrochloric acid from by-product gases, for example, from hydrocarbons. Both methods are used on an industrial scale when it is necessary to obtain a lot of substance for further use.

In the laboratory, hydrochloric acid can be obtained through a popular exchange reaction: when sodium chloride ( salt) is mixed with concentrated sulfuric acid, heated to 150°C, and the output is sodium hydrogen sulfate and the desired hydrogen chloride.

Where is it used?

Caustic hydrochloric acid has found application in industry and medicine. Hydrometallurgy and electroplating are impossible without the use of hydrogen chloride. It is used to clean the surface of metals and ceramics, and various chlorides are obtained with its help.

Cleaning metal from cement with hydrochloric acid

IN natural form hydrochloric acid is contained in gastric juice, being an integral part of it. At low acidity stomach, patients are prescribed a weak solution of hydrogen chloride in combination with pepsin ( digestive enzyme) inside.

This is interesting! Hydrochloric acid is even registered as a food additive as an acidity regulator (E507).

Symptoms of poisoning

There are three ways to be poisoned by hydrogen chloride, and depending on this, the signs of poisoning will be different.

Skin contact

To some extent, this can be considered poisoning because the body interacts with the toxic substance through contact through the skin. The result of contact of hydrochloric acid with the skin is a burn. Depending on its degree, there are different symptoms. At first there is moderate redness and pain. If the acid concentration is high, blisters and necrosis may form, and the burn site changes color from red to white or dark.

Through the respiratory tract

Such poisoning often occurs in production due to force majeure or failure to comply with safety regulations. Primary irritant effect turns out to be on top Airways, resulting in symptoms such as hoarseness, chest pain, painful cough, and a feeling of suffocation. At the same time, the larynx swells, which makes breathing difficult. If the victim is not given help and continues to be in the affected area, toxic pulmonary edema develops, which can be fatal.

If swallowed

People who get hydrochloric acid into their stomach are usually perplexed: how can you drink a liquid and not understand that it is acid? Thus, as a rule, children and people who decide to give up their lives are poisoned. Symptoms characteristic of poisoning and burns of the mucous membrane: nausea and vomiting with blood, pain throughout digestive tract, painful cough, a lot of saliva. The skin on the body may turn yellowish and the urine dark brown. Another characteristic symptom: liver damage. The right side begins to pull, and toxic hepatitis develops.

Attention! Complications after hydrochloric acid poisoning can include: severe lesions organs of the nasopharynx, as well as the esophagus and stomach. Burn shock often leads to instant death.

First aid for poisoning

First aid measures also depend on the method of poisoning.

1. If hydrochloric acid gets on the skin, you should wash the affected area with running water and then with an alkali solution (for example, soda - 1 tsp per 200 mg of water). If fabric is stuck to the skin, do not remove it.
2. If a person has inhaled hydrogen chloride vapor, he should be taken out into the air and allowed to rinse his throat with a solution of furatsilin. After this, give warm milk with added soda to drink. Apply mustard plasters to the larynx area. Rinse your eyes with water and drop in a solution of novocaine.
3. Ingested hydrochloric acid is the most dangerous condition, and the further health and life of a person depends on the provision of first aid. The stomach must be rinsed immediately, preferably using a tube. Used as a washing liquid soda solution. After this, the victim is placed on the stomach with cold, and pieces of ice are also allowed to swallow. Internal bleeding stops medicines: intramuscular injections.

In case of hydrochloric acid poisoning, the victim himself sometimes remains conscious, so he may well be able to help himself on his own. Anyone can get out of the affected area into the air, treat the burn with alkali, or at least call for help and tell those who arrive in time about their symptoms.

Hydrochloric acid (H Cl)hazard class 3

(concentrated hydrochloric acid)

Colorless, transparent, aggressive, non-flammable liquid with a pungent odor of hydrogen chloride. Represents 36% ( concentrated) a solution of hydrogen chloride in water. Heavier than water. It boils at a temperature of +108.6 0 C, and hardens at a temperature of –114.2 0 C. It dissolves well in water in all proportions, “smoke” in air due to the formation of hydrogen chloride with water vapor and fog droplets. Interacts with many metals, metal oxides and hydroxides, phosphates and silicates. When interacting with metals, it releases a flammable gas (hydrogen); when mixed with other acids, it causes spontaneous combustion of some materials. Destroys paper, wood, fabrics. Causes burns upon contact with skin. Exposure to hydrochloric acid fog, which is formed as a result of the interaction of hydrogen chloride with water vapor in the air, causes poisoning.

Hydrochloric acid is used in chemical synthesis, for processing ores, pickling metals. It is obtained by dissolving hydrogen chloride in water. Technical hydrochloric acid is produced with a strength of 27.5-38% by weight.

Hydrochloric acid is transported and stored in rubberized (coated with a layer of rubber) metal railway and automobile tanks, containers, cylinders, which are its temporary storage. Typically, hydrochloric acid is stored in above-ground cylindrical vertical rubberized tanks (volume 50-5000 m3) at atmospheric pressure and ambient temperature or in 20-liter glass bottles. Maximum storage volumes 370 tons.

Maximum permissible concentration (MPC) in the air inhabited items is 0.2 mg/m 3 in the air of the working area of ​​industrial premises 5 mg/m3. At a concentration of 15 mg/m3, the mucous membranes of the upper respiratory tract and eyes are affected, a sore throat, hoarseness, cough, runny nose, shortness of breath, and difficulty breathing appear. At concentrations of 50 mg/m3 and above, bubbling breathing occurs, sharp pains behind the sternum and in the stomach area, vomiting, spasm and swelling of the larynx, loss of consciousness. Concentrations of 50-75 mg/m 3 are difficult to tolerate. A concentration of 75-100 mg/m3 is intolerable. A concentration of 6400 mg/m 3 within 30 minutes is lethal. The maximum permissible concentration when using industrial and civil gas masks is 16,000 mg/m 3 .

When eliminating accidents, associated with a spill of hydrochloric acid, it is necessary to isolate the danger zone, remove people from it, stay to the windward side, and avoid low places. Directly at the accident site and in contaminated areas with high concentrations at a distance of up to 50 m from the spill site, work is carried out in insulating gas masks IP-4M, IP-5 (using chemically bound oxygen) or breathing apparatus ASV-2, DASV (using compressed air), KIP-8, KIP-9 (using compressed oxygen) and skin protection products (L-1, OZK, KIKH-4, KIKH-5). At a distance of more than 50 m from the source, where the concentration sharply decreases, skin protective equipment need not be used, and for respiratory protection, industrial gas masks with boxes of brands B, BKF, as well as civilian gas masks GP-5, GP-7, PDF-2D are used , PDF-2Sh complete with an additional cartridge DPG-3 or respirators RPG-67, RU-60M with a box of brand V.

Due to the fact that hydrochloric acid "smoke" in the air with the formation droplets of fog interacting hydrogen chloride with water vapor, the presence in the air is determined hydrogen chloride.

The presence of hydrogen chloride is determined:

In the air of an industrial zone with an OKA-T-N gas analyzer Cl , gas alarm IGS-98-N Cl , universal gas analyzer UG-2 with a measurement range of 0-100 mg/m 3 , gas detector of industrial chemical emissions GPHV-2 in the range of 5-500 mg/m 3 .

In open space – with SIP “CORSAR-X” devices.

Indoors – SIP “VEGA-M”

Neutralizes hydrochloric acid and hydrogen chloride vapors the following alkaline solutions:

5% aqueous solution of caustic soda (for example, 50 kg of caustic soda per 950 liters of water);

5% aqueous solution of soda powder (for example, 50 kg of soda some powder for 950 liters of water);

5% aqueous solution of slaked lime (for example, 50 kg of slaked lime per 950 liters of water);

5% water solution of caustic soda (for example, 50 kg of caustic soda per 950 liters of water);

In the event of a hydrochloric acid spill and the absence of an embankment or pan, the spill site is fenced off with an earthen rampart, hydrogen chloride vapor is precipitated by placing a water curtain (water consumption is not standardized), the spilled acid is neutralized to safe concentrations with water (8 tons of water per 1 ton of acid) in compliance with all measures precautions or a 5% aqueous solution of alkali (3.5 tons of solution per 1 ton of acid) and neutralize 5% aqueous solution of alkali (7.4 tons of solution per 1 ton of acid).

To spray water or solutions, watering and fire trucks, auto-filling stations (ATs, PM-130, ARS-14, ARS-15), as well as hydrants and special systems available at chemically hazardous facilities, are used.

To dispose of contaminated soil at the site of a hydrochloric acid spill, the surface layer of soil is cut off to the depth of contamination, collected and transported for disposal using earthmoving vehicles (bulldozers, scrapers, motor graders, dump trucks). The cut areas are covered with a fresh layer of soil and washed with water for control purposes.

Leader actions: isolate the danger zone within a radius of at least 50 meters, remove people from it, stay to the windward side, avoid low places. Enter the accident area only in full protective clothing.

Providing first aid:

In the contaminated area: rinse eyes and face generously with water, put on anti-vogaza, urgent withdrawal (removal) from the outbreak.

After evacuating a contaminated area: warming, rest, washing off the acid from exposed skin and clothing with water, washing the eyes abundantly with water, if breathing is difficult, apply heat to the neck area, subcutaneously - 1 ml. 0.1% atropine sulfate solution. Immediate evacuation to a medical facility.

Hydrochloric acid (hydrochloric acid) - water solution Hydrogen chloride HCl is a clear, colorless liquid with a pungent odor of hydrogen chloride. Technical acid has a yellowish-green color due to impurities of chlorine and iron salts. The maximum concentration of hydrochloric acid is about 36% HCl; such a solution has a density of 1.18 g/cm3. Concentrated acid “smoke” in air, since the released gaseous HCl forms tiny droplets of hydrochloric acid with water vapor.

Hydrochloric acid is not flammable or explosive. It is one of the strongest acids; it dissolves (with the release of hydrogen and the formation of salts - chlorides) all metals in the voltage series up to hydrogen. Chlorides are also formed when hydrochloric acid reacts with metal oxides and hydroxides. It behaves as a reducing agent with strong oxidizing agents.

Salts of hydrochloric acid - chlorides, with the exception of AgCl, Hg2Cl2, are highly soluble in water. Glass, ceramics, porcelain, graphite, and fluoroplastic are resistant to it.

Hydrochloric acid is obtained by dissolving hydrogen chloride in water, which is synthesized either directly from hydrogen and chlorine or obtained by the action of sulfuric acid on sodium chloride.

The produced technical hydrochloric acid has a strength of at least 31% HCl (synthetic) and 27.5% HCl (from NaCI). A commercial acid is called concentrated if it contains 24% or more HCl; if the HCl content is less, then the acid is called dilute.

Hydrochloric acid is used to obtain chlorides of various metals, organic intermediates and synthetic dyes, acetic acid, activated carbon, various adhesives, hydrolytic alcohol, in electroforming. It is used for etching metals, for cleaning various vessels, casing pipes of drilling wells from carbonates, oxides and other sediments and contaminants. In metallurgy, ores are treated with acid; in the leather industry, leather is treated with acid before tanning and dyeing. Hydrochloric acid is used in textile, Food Industry, in medicine, etc.

Hydrochloric acid plays an important role in the digestive process, it is integral part gastric juice. Diluted hydrochloric acid is prescribed orally mainly for diseases associated with insufficient acidity of gastric juice.

Hydrochloric acid is transported in glass bottles or rubberized (rubber-coated) metal vessels, as well as in plastic containers.

Hydrochloric acid very dangerous to human health. Causes severe burns upon contact with skin. Contact with eyes is especially dangerous.

If hydrochloric acid gets on the skin, it must be washed off immediately with plenty of water.

Fog and hydrogen chloride vapors formed when interacting with air are very dangerous. concentrated acid. They irritate the mucous membranes and respiratory tract. Long work in the atmosphere, HCl causes catarrh of the respiratory tract, tooth decay, clouding of the cornea of ​​the eyes, ulceration of the nasal mucosa, and gastrointestinal disorders.
Acute poisoning accompanied by hoarseness, suffocation, runny nose, cough.

In the event of a leak or spill, hydrochloric acid can cause significant damage environment . Firstly, this leads to the release of vapors of the substance into atmospheric air in quantities exceeding sanitary and hygienic standards, which can lead to poisoning of all living things, as well as the appearance of acid precipitation, which can lead to changes chemical properties soil and water.

Secondly, it can leak into groundwater, which can result in contamination of inland waters.
Where the water in rivers and lakes has become quite acidic (pH less than 5), fish disappear. When trophic chains are disrupted, the number of species of aquatic animals, algae and bacteria decreases.

In cities, acid precipitation accelerates the destruction of marble and concrete structures, monuments and sculptures. When it comes into contact with metals, hydrochloric acid causes corrosion, and when it reacts with substances such as bleach, manganese dioxide, or potassium permanganate, it forms toxic chlorine gas.

In case of a spill, wash off hydrochloric acid from surfaces with plenty of water or alkaline solution, which neutralizes acid.

The material was prepared based on information from open sources

Hydrochloric acid poisoning poses a fairly serious threat to human life. In this case, severe burns of the mucous membranes, respiratory tract, and skin occur.

Any person needs to know the signs of such poisoning and be able to provide assistance to the victim. After all, his life depends on it.

Concept

Hydrochloric acid belongs to the group of highly caustic and toxic substances.

The second name of the substance is hydrogen chloride.

She represents clear liquid(may sometimes be present yellowish color). The smell from it is pungent and unpleasant. Sometimes you can see a cloud of smoke above the container with it.

Hydrochloric acid vapors are no less toxic and have the same destructive effect on the body.

This substance is obtained industrially - hydrogen chloride (gas) is dissolved in water. ()

Application

The scope of use of hydrochloric acid is very wide. It is used:

• in hydrometallurgy,
• for cleaning metals before soldering,
• for the production of chlorides of various metals,
• for cleaning ceramic products,
• in medicine,
• in the food industry.

In addition, human gastric juice also contains a small amount of hydrochloric acid. It regulates the acidity of the environment.

Considering that this substance is used in many areas, poisoning occurs quite often. It may be caused by inattention, it may be a suicide attempt, or work in an industrial environment where quite a large amount of vapor is released.

Hydrochloric acid intoxication: symptoms

Symptoms of hydrochloric acid poisoning vary depending on how it happened. There are three ways for poison to enter the body:

• swallowing,
• inhalation,
• through the skin.

Each of them is characterized features that a person needs to know.

If swallowed

Hydrochloric acid poisoning through oral cavity occurs when poison is swallowed. As a rule, this most often happens in people who are prone to suicide and children who drank the substance as a result of parental inattention. In this case, the following symptoms are noted:

• pain and burning in the mouth,
• nausea, brownish-black vomiting, often mixed with blood,
• coughing,
• profuse salivation,
• painful sensations in the esophagus, stomach, behind the sternum,
• the tongue turns black
• the skin may become yellowish,
• Painful sensations appear in the right side due to liver dysfunction.

Through the respiratory tract

Poisoning by hydrochloric acid vapor is no less dangerous than ingesting this substance.

It is also quite destructive. Occurs, as a rule, in production associated with this poison. The following symptoms are observed:

• the voice becomes hoarse
• pain appears in the nasopharynx,
• severe cough occurs
• possible pain in the chest,
• at severe poisoning swelling of the larynx occurs,
• the person begins to choke.

With absence necessary assistance, a victim of vapor poisoning may develop pulmonary edema, which can subsequently cause death.

Skin contact

This cannot be called poisoning in the full sense of the word. However, getting acid on the skin brings a lot of suffering and trouble to a person. A burn occurs.

In this case, the following signs are observed:

• redness of the skin area,
• strong pain,
• blistering,
• change in skin color to lighter or, conversely, darker.

Without help, tissue death is possible.

In addition, it can be noted general signs for hydrochloric acid poisoning, regardless of the method:

• headache,
• pressure reduction,
• tachycardia,
• possible increase in temperature,
• loss of consciousness.

From internal organs First of all, the liver suffers, as the organ responsible for cleansing the body of toxins. As a result, the functionality of the kidneys begins to deteriorate, up to renal failure.

A person may go into shock from an acid burn, causing death.

Therapy

Treatment of intoxication with this poison begins with emergency care. This will give the person a chance to recover.

First aid for hydrochloric acid poisoning includes the following:

• If a skin burn occurs with acid, it is necessary to rinse the area. cool water, after which you can wash this area weak solution soda (small spoon per glass of water). It will help neutralize the acid.
• In case of poisoning through the respiratory tract, it is necessary to remove the person to clean air as quickly as possible and ventilate the room. You can give him a solution of soda or furatsilin to gargle. In addition, the victim is given warm milk to drink.
• Poisoning that occurs through the oral cavity is the most severe and dangerous. Currently, there are two rather conflicting opinions: to induce vomiting or not. It is believed that inducing vomiting and gastric lavage is necessary to free the latter from the acid that has entered inside. But cases are not uncommon when ruptures of the esophageal and gastric membranes occur, which are damaged by acid. Additionally, when water and acid mix, heat can be generated, causing further burns. The victim is allowed to give drinks and foods containing protein - milk, raw protein eggs. In the presence of stomach bleeding An ice pack should be placed on the stomach, and the person may be given pieces of ice or frozen milk to ingest. In case of hydrochloric acid poisoning, drugs with a laxative effect should not be used. The fact is that the human intestines are quite long, so before the acid is removed, it can also cause damage to him. With strong painful sensations you can give injections of painkillers.

But in any of these cases, first of all, you need to call doctors. And correctly and timely first aid will help them in the future.

The patient is treated in a medical facility.

Wherein:

• Gastric lavage is performed, but only in a hospital setting.
• Drugs are prescribed to stop bleeding.
• Are used medicines to support performance various organs- heart, liver, kidneys.
• The victim is prescribed a diet.

Unfortunately, even after recovery, a person can be persecuted various diseases, scars in the digestive organs.

To avoid poisoning, you should use protective equipment (clothing, respirators, gloves) when working with this poison. If poisoning does occur, then it is necessary to provide first aid to the person as quickly as possible in order to save his life.

Video: Making hydrochloric acid at home